KR102496205B1 - System and method for compensating motor sensing temperature - Google Patents

Abstract

The present invention provides a system and method for compensating a motor sensing temperature of an eco-friendly vehicle. The present invention determines a compensation temperature value that a compensation value is added to an actual motor temperature value sensed by a temperature sensor for compensating late reactivity of a temperature sensor when motor temperature rapidly rises to at least a predetermined level to provide the compensation temperature value to a motor controller, thereby compensating the late sensing reactivity of the temperature sensor sensing the motor temperature to always measure the motor temperature accurately, preventing burning due to overtemperature of a motor, and securing stable operation of a motor cooling system.

Description

Motor sensing temperature compensation system and method for eco-friendly vehicles {SYSTEM AND METHOD FOR COMPENSATING MOTOR SENSING TEMPERATURE}

The present invention relates to a motor sensing temperature compensation system and method for an eco-friendly vehicle, and more particularly, to an eco-friendly vehicle capable of accurately measuring the motor temperature by compensating for the slow responsiveness of a temperature sensor for sensing the temperature of a motor for an eco-friendly vehicle. It relates to a motor sensing temperature compensation system and method.

Green vehicles such as hybrid vehicles, electric vehicles, and hydrogen fuel cell vehicles are equipped with driving motors for driving. When the driving motors are driven, losses occur due to heat, wind, sound, and the like.

Heat loss, which accounts for a large portion of the losses generated during driving of the motor, increases the temperature of the motor system, and as a result, the actual temperature of the motor exceeds the allowable temperature of the motor.

The allowable temperature of the motor is a reference temperature for preventing over-temperature burnout and permanent magnet demagnetization of the coil part of the motor, so that the motor is driven within the allowable temperature of the motor Cooling system of the motor for appropriately cooling the motor Accurate sensing of the motor temperature is essential to determine the degree of overtemperature of the motor.

For reference, the motor cooling system is classified into an air cooling type, a water cooling type, and an oil cooling type according to a cooling method, which is classified according to which of air, cooling water, and cooling oil is used as a coolant for cooling.

In recent years, as the demand for high performance of motors and the importance of cooling performance of motors have increased, the oil cooling method that directly cools the motor using cooling oil has been increasingly used. Sensing is essential.

The motor temperature detection method includes a motor temperature estimation method using a predetermined temperature estimation model and a method of directly sensing the motor temperature using a temperature sensor. However, for reliability of motor temperature detection, the temperature estimation model Regardless of whether it is used or not, a direct sensing method through the temperature sensor is essentially used.

In general, the temperature sensor has a temperature measurable range, responsiveness, sensitivity, etc. determined according to its shape and material, and is manufactured in various ways with the aim of quickly and accurately measuring a wider range of temperatures, in order to sense the motor temperature. A temperature sensor of the NTC (Negative Temperature Coefficient) type attached to the stator coil part of the motor is widely used.

The NTC type temperature sensor has a principle of measuring a resistance value inside the sensor according to a change in motor temperature and converting a voltage value therefrom into a temperature.

However, the existing temperature sensor is manufactured in a structure in which the sensor resistance part does not directly touch the stator coil part of the motor and is surrounded by a sensor case and coating material for durability reliability, so a sensing delay occurs when sensing the temperature of the stator coil part. , This causes late derating of the motor cooling system and burnout due to overheating of the motor due to the slow sensing response of the temperature sensor to rapid temperature change.

For example, during a test in which a single motor is driven at the maximum torque, the sensing temperature of the temperature sensor is maintained at the allowable temperature, but in reality, the stator coil of the motor is overheated to the highest temperature and burns out. This phenomenon occurs in the temperature sensor. This is due to the occurrence of a sensing delay when sensing the temperature of the stator coil unit.

In other words, the cause of the phenomenon that the stator coil part of the motor is overheated to the highest temperature and burnt out is because the temperature sensor's sensing speed cannot keep up with the actual temperature of the stator coil part, which rapidly rises according to the motor's highest torque drive, and the motor overheat protection logic This is due to the fact that the temperature rise gradient rapidly increases when a rapid high torque is applied to the motor at low LPM (Liter Per Minute) cooling at a low initial temperature of the motor.

1 is a graph showing the results of sensing the temperature change of the motor by 10 additional temperature sensors in addition to the existing temperature sensor under the low-torque and high-torque driving conditions of the motor and the cooling flow rate of 0 LPM.

As shown in FIG. 1, in the low torque section of the motor, the motor temperature sensing values of the temperature sensors seem to follow the actual temperature of the motor well, but in the high torque section of the motor, as the motor temperature rises rapidly, the maximum temperature of the motor At this level of 180 ° C, the actual sensing temperature of the temperature sensor was 80 ° C, and it was found that the difference greatly widened. This is due to the occurrence of a delay.

Accordingly, accurate sensing of the motor temperature is required in order to determine the degree of overheating of the motor.

The present invention has been made to solve the above conventional problems, and compensates for the slow responsiveness of the temperature sensor when the temperature of the motor rapidly rises so that the motor temperature can be accurately measured. Its purpose is to provide a motor sensing temperature compensation system and method for an eco-friendly vehicle that can prevent burnout and ensure stable operation of the motor cooling system.

One embodiment of the present invention for achieving the above object is: a temperature sensor for sensing the temperature of the motor; A motor sensing temperature that calculates a temperature gradient of the motor temperature value sensed by the temperature sensor, and outputs a compensation temperature value obtained by adding a compensation value to the motor temperature value sensed by the temperature sensor when the calculated temperature gradient exceeds the reference slope. controller for compensation; and a motor controller that executes an overtemperature protection logic for protecting the motor based on the compensation temperature value or controls an electric oil pump that pressurizes cooling oil to the motor with a specific RPM command signal. It provides a motor sensing temperature compensation system for an eco-friendly vehicle, characterized in that configured to include.

In particular, the motor sensing temperature compensation controller includes: a buffer memory for storing the motor temperature value sensed by the temperature sensor; a temperature gradient monitoring unit calculating a temperature gradient with respect to the motor temperature value stored in the buffer memory; and a motor sensing temperature compensation determiner determining a compensation temperature value by adding a compensation value to the motor temperature value sensed by the temperature sensor when it is determined that the temperature slope exceeds a reference slope. It is characterized by consisting of.

Preferably, the buffer memory is configured to store the motor temperature value sensed by the temperature sensor in a matrix form.

Preferably, the temperature gradient monitoring unit is configured to calculate the temperature gradient a by fitting the motor temperature value stored in the buffer memory to a linear function form of y=ax+b.

In addition, the motor sensing temperature compensation determination unit is characterized in that it is configured to determine the compensation temperature value from T _OUT = T _IN + F(a) = T _IN + (a × τ).

In the above equation, a is the temperature gradient, τ is the time constant value representing the responsiveness of the temperature sensor, T _IN is the motor temperature value sensed by the temperature sensor, F(a) is the compensation value obtained by multiplying the temperature gradient a and the time constant value τ, T _OUT is the compensated temperature value obtained by adding the compensated value F(a) to the motor temperature value T _IN .

Preferably, the motor sensing temperature compensation determination unit is configured to determine the compensation value F(a) as a value obtained by multiplying a value obtained by multiplying the temperature gradient a and the time constant value τ by an arbitrary safety factor.

Another embodiment of the present invention for achieving the above object is: sensing the motor temperature with a temperature sensor; storing the motor temperature value sensed by the temperature sensor in a buffer memory; calculating a temperature gradient of a motor temperature value stored in the buffer memory; and a motor sensing temperature compensation step of outputting a compensation temperature value obtained by adding a compensation value to the motor temperature value when the temperature slope exceeds a reference slope. It provides a motor sensing temperature compensation method for an eco-friendly vehicle, characterized in that it comprises a.

In the step of calculating the temperature gradient, the motor temperature value stored in the buffer memory is fitted into a linear function form of y = ax + b, and the temperature gradient a is calculated from the fitted linear function form y = ax + b It is characterized by doing.

The motor-sensing temperature compensation step may include: determining a compensation value F(a) for the motor temperature value sensed by the temperature sensor as a value obtained by multiplying the temperature slope a by the time constant value τ, when the temperature slope exceeds the reference slope. and; determining a compensation temperature value T _OUT obtained by adding a compensation value F(a) to the motor temperature value T _IN sensed by the temperature sensor; It is characterized by consisting of.

In addition, the method of the present invention further includes the step of executing an overtemperature protection logic for protecting the motor in a motor controller or controlling an electric oil pump that pressurizes cooling oil to the motor with a specific RPM command signal based on the compensated temperature value. It is characterized by including.

Through the means for solving the above problems, the present invention provides the following effects.

First, when the motor temperature rises rapidly above a certain level, the compensation temperature value obtained by adding the compensation value to the actual motor temperature value sensed by the temperature sensor is determined and provided to the motor controller, thereby sensing the motor temperature. By compensating for the slow sensing response of the sensor, an accurate measurement of the motor temperature can always be achieved.

Second, since the motor controller can quickly and accurately determine the motor temperature through the compensation temperature value obtained by adding the compensation value to the actual motor temperature value sensed by the temperature sensor, the motor controller overheat protection that reduces the motor torque output by controlling the motor torque derating. Logic and the like can be accurately executed, and accordingly, burnout and demagnetization caused by overheating of the motor can be easily prevented by lowering the motor temperature.

1 is a graph showing temperature changes of a motor sensed by a conventional temperature sensor;
2 is a configuration diagram showing a motor cooling system for compensating motor sensing temperature of an eco-friendly vehicle according to the present invention;
3 is a configuration diagram showing a motor sensing temperature compensation system for an eco-friendly vehicle according to the present invention;
4 is a flow chart showing a motor sensing temperature compensation method of an eco-friendly vehicle according to the present invention;
5 is a graph showing a temperature change of a motor resulting from the application of a motor sensing temperature compensation method of an eco-friendly vehicle according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 shows an example of an oil-cooled cooling system for compensating for motor sensing temperature of an eco-friendly vehicle according to the present invention.

As shown in FIG. 2, the oil-cooled cooling system for compensating the motor sensing temperature of an eco-friendly vehicle includes a motor 10 and a reducer 20, an electric oil pump 30, a heat exchanger 40, etc. for driving the vehicle. It is configured to form one closed circuit to enable the circulation of the cooling oil.

More specifically, the oil-cooled cooling system for compensating the motor sensing temperature includes an electric oil pump (30, EOP: Electric Oil Pump) for circulatingly supplying cooling oil to the motor 10 and the reducer 20. And, a heat exchanger 40 for cooling the cooling oil discharged after cooling the motor 10 and the reducer 20, a temperature sensor 50 for sensing the temperature of the motor 10, and the temperature sensor It is configured to include a motor controller (60, MCU: Motor Control Unit) that controls the driving RPM of the electric oil pump 30 according to the sensing temperature of (50).

The temperature sensor 50 is mounted on the stator coil of the motor 10 and transmits a temperature signal sensed by the motor to the motor controller 60 .

The motor controller 60 controls to apply a specific RPM command signal to the electric oil pump 30 using an RPM map for driving the electric oil pump based on the motor sensing temperature of the temperature sensor 50.

Therefore, the step of exchanging heat with the low-temperature cooling water in the heat exchanger 40 so that the temperature of the cooling oil pumped to the heat exchanger 40 by the driving of the electric oil pump 30 is lowered, and the temperature is reduced by the heat exchange. The lowered cooling oil is supplied to the motor 10 by the driving pressure of the electric oil pump 30 to cool the motor 10, and the cooled oil of the motor cools the oil filter attached to the reducer 20 The motor may be cooled by repeating the process of removing impurities and then discharging them to the electric oil pump 30 again.

At this time, the motor controller 60 issues a specific RPM command signal to the electric oil pump 30 based on the motor temperature sensing signal of the temperature sensor 50, and when the motor temperature is determined to be overtemperature equal to or higher than the allowable temperature, the motor By executing the over-temperature protection logic for reducing the motor torque output through torque derating control for reducing the torque output, the motor torque output is lowered and the temperature of the motor is lowered, so that burnout due to overheating of the motor can be prevented.

However, if the motor temperature rapidly rises above a certain level in the high torque section of the motor before the overtemperature protection logic is executed, the motor temperature rises above the allowable temperature due to the late response of the temperature sensor, that is, the sensing delay. This may cause damage to the motor.

Therefore, the present invention provides a temperature compensation logic for compensating for the slow responsiveness of the temperature sensor when the temperature of the motor rapidly rises, so that the motor temperature can be accurately measured, thereby preventing burnout due to overtemperature of the motor and There is one point to focus on to ensure reliable operation of the motor cooling system.

To this end, the motor sensing temperature compensation system of the present invention executes an over-temperature protection logic to protect the motor based on the motor temperature sensing signal of the temperature sensor 50 or an electric oil pump 30 that pressurizes cooling oil to the motor Including the motor controller 60 for controlling with a specific RPM command signal, the temperature slope of the motor temperature value sensed by the temperature sensor 50 is calculated, and when the temperature slope of the calculated motor temperature value exceeds the reference slope, It is configured to include a motor sensing temperature compensation controller 70 to output a compensation temperature value for adding a compensation value to the motor temperature value sensed by the temperature sensor 50 to the motor controller 60 .

More specifically, as shown in FIG. 3, the motor sensing temperature compensation controller 70 includes a buffer memory 72 for storing the motor temperature value sensed by the temperature sensor 50, and the buffer memory ( The temperature gradient monitoring unit 74 that calculates the temperature gradient for the motor temperature value stored in 72) and the temperature gradient calculated by the temperature gradient monitoring unit 74 are compared with the reference gradient, and the comparison result is the temperature gradient monitoring unit ( When it is determined that the temperature slope calculated in 74) exceeds the reference slope, the motor sensing temperature compensation determination unit 76 determines the compensation temperature value by adding a compensation value to the motor temperature value sensed by the temperature sensor 50. can be configured to include

Preferably, the controller 70 for compensating the motor sensing temperature may be provided alone and connected between an output terminal of the temperature sensor 50 and an input terminal of the motor controller 60 .

More preferably, the motor sensing temperature compensation controller 70 may be integrated into the motor controller 60 as a single logic unit.

In other words, the motor controller 60 issues a specific RPM command signal to the electric oil pump 30 based on the motor temperature sensing signal of the temperature sensor 50, and when it is determined that the motor temperature is overtemperature above the allowable temperature Over-temperature protection logic for reducing motor torque output is executed through torque derating control for reducing motor torque output, and the motor sensing temperature compensation controller 70 is integrated into the motor controller 60 as one logic unit. and can be built.

The buffer memory 72 of the motor sensing temperature compensation controller 70 stores the motor temperature value sensed by the temperature sensor 50, and the temperature gradient monitoring unit 74 calculates the temperature gradient with respect to the motor temperature value. It is configured to store the motor temperature values in a matrix form so as to be easily grasped, and the size of the matrix at this time can be set differently by the user according to the capacity of the motor.

The temperature gradient monitoring unit 74 of the motor sensing temperature compensation controller 70 is a part for determining the temperature gradient of the motor temperature value stored in the buffer memory 72, and the motor temperature value stored in the buffer memory 72. That is, it is configured to fit the motor temperature data in the form of a linear function of y=ax+b.

At this time, in the form of the linear function of y=ax+b above, a represents the temperature gradient.

The motor sensing temperature compensation determination unit 76 of the motor sensing temperature compensation controller 70 compares the temperature gradient a calculated by the temperature gradient monitoring unit 74 with a preset reference gradient A, When it is determined that the temperature slope (a) exceeds the reference slope (A), a compensation temperature value for adding a compensation value to the motor temperature value sensed by the temperature sensor 50 is determined.

For example, the motor sensing temperature compensation determining unit 76 may determine a compensation temperature value for adding a compensation value to the motor temperature value sensed by the temperature sensor 50 through Equation 1 below.

[Formula 1] T _OUT = T _IN + F(a) = T _IN +(a×τ)

In Equation 1 above, a is the temperature gradient, τ is a time constant value representing the responsiveness of the temperature sensor, T _IN is the motor temperature value sensed by the temperature sensor, and F(a) is a compensation value obtained by multiplying the temperature gradient a and the time constant value τ. , T _OUT represent the compensation temperature value obtained by adding the compensation value F(a) to the motor temperature value T _IN .

In this case, the time constant value τ is a preset value in which characteristics of the motor coil heating, temperature sensor, case, and coating agent are reflected.

As described above, the motor sensing temperature compensation determining unit 76 determines the compensation temperature value T _OUT by adding the compensation value F(a) to the motor temperature value T _IN sensed by the temperature sensor 50 and transmitted to the motor controller 60.

Preferably, the motor sensing temperature compensation determination unit 76 increases the temperature of the motor to the maximum limit temperature by rapidly increasing the temperature rise gradient in the high torque section of the motor, etc., in addition to taking into account the slow responsiveness of the temperature sensor 50, etc. Considering the risk of doing so, the compensation value (F(a)) is determined by multiplying the temperature gradient a and the time constant value τ by an arbitrary safety factor (eg, 1.1) as shown in Equation 2 below. It can be.

[Equation 2] F(a) = a×τ×1.1

Therefore, even if the temperature rise gradient rapidly increases in the high torque section of the motor, etc., the motor controller 60 quickly and accurately determines the motor temperature through the compensation temperature value T _OUT determined by the motor sensing temperature compensation determination unit 76. Since the identification is possible, the motor controller 60 immediately executes an over-temperature protection logic for reducing the motor torque output through torque derating control to reduce the motor torque output, thereby lowering the motor torque output, thereby lowering the temperature of the motor. Burnout due to motor overtemperature can be easily prevented.

Here, a method for compensating the motor sensing temperature of an eco-friendly vehicle based on the above configuration will be described as follows.

4 is a flow chart illustrating a method for compensating for a temperature sensed by a motor of an eco-friendly vehicle according to the present invention.

When driving the motor for driving the eco-friendly vehicle, the temperature sensor 50 senses the motor temperature in real time (S101).

At this time, the motor temperature value signal sensed by the temperature sensor 50 is transmitted to the motor controller 60 and stored in the buffer memory 72 of the motor sensing temperature compensation controller 70 (S102).

Subsequently, the temperature gradient monitoring unit 74 of the controller 70 for compensating the motor sensing temperature uses the motor temperature value stored in the buffer memory 72 to determine the temperature gradient of the motor temperature value stored in the buffer memory 72. Fitting is performed in the form of a linear function of y = ax + b (S103).

At this time, the temperature gradient a can be calculated from the above linear function form of y=ax+b.

Next, in the motor sensing temperature compensation determination unit 76 of the motor sensing temperature compensation controller 70, the temperature gradient a calculated by the temperature gradient monitoring unit 74 is compared with a preset reference gradient A. Do (S104).

As a result of the comparison, if the temperature slope (a) is less than the reference slope (A), the compensation value (F(a)) for the motor temperature value sensed by the temperature sensor 50 is determined to be zero (0) (S105) , On the other hand, if it is determined that the temperature slope (a) exceeds the reference slope (A), the compensation value (F(a)) for the motor temperature value sensed by the temperature sensor 50 is corrected with the temperature slope (a). It is determined as a value multiplied by the numerical value (τ) (S106).

Subsequently, as described in [Equation 1] above, the motor sensing temperature compensation determination unit 76 adds the compensation value F(a) to the motor temperature value T _IN sensed by the temperature sensor to compensate the temperature value (T _OUT ) is determined and transmitted to the motor controller 60 (S107).

Therefore, even if the temperature rise gradient increases rapidly in the high torque section of the motor, etc., the motor controller 60 delays the actual motor temperature through the compensation temperature value T _OUT determined by the motor sensing temperature compensation determination unit 76 can be identified quickly and accurately.

Referring to the graph of FIG. 5 showing the results of a test example to which the motor sensing temperature compensation logic of the present invention is applied, according to the motor sensing temperature compensation logic of the present invention under the condition of low torque and high torque driving conditions of the motor and a cooling flow rate of 0 LPM It was found that the compensation temperature value was similar to the rapidly increased motor temperature in the high torque section of the motor, and it was found that the difference with the maximum temperature of the motor (the part with the highest temperature, not the location where the temperature sensor was attached) was greatly reduced. In the end, it was found that the temperature of the actual motor can be determined quickly and accurately without delay.

In this way, when the motor is cooled by the cooling oil according to the low LPM (Liter Per Minute) driving of the electric oil pump, even if the rising slope of the motor temperature increases rapidly in the high torque section of the motor, the motor controller 60 ) can quickly and accurately grasp the temperature of the actual motor without delay through the compensation temperature value (T _OUT ) determined by the motor sensing temperature compensation determination unit 76, so that the motor controller reduces the motor torque output through motor torque derating control By directly executing the over-temperature protection logic and the like (S108) to lower the motor torque output, the temperature of the motor is lowered, thereby easily preventing burnout and demagnetization due to over-temperature of the motor.

In addition, even if a sudden temperature change of the motor occurs, since the temperature of the actual motor can be grasped quickly and accurately without delay, proper RPM control for the electric oil pump is possible and stable operation of the motor cooling system can be guaranteed, Accordingly, stable driving performance of the eco-friendly vehicle can be guaranteed.

Although the present invention has been described in detail as one embodiment, the scope of the present invention is not limited to the above-described one embodiment, and those skilled in the art using the basic concept of the present invention defined in the claims below Various modifications and improvements will also be included in the scope of the present invention.

10: motor
20: reducer
30: electric oil pump
40: heat exchanger
50: temperature sensor
60: motor controller
70: controller for motor sensing temperature compensation
72: buffer memory
74: temperature gradient monitoring unit
76: motor sensing temperature compensation determination unit

Claims (10)

A temperature sensor for sensing the temperature of the motor;
A motor sensing temperature that calculates a temperature gradient of the motor temperature value sensed by the temperature sensor, and outputs a compensation temperature value obtained by adding a compensation value to the motor temperature value sensed by the temperature sensor when the calculated temperature gradient exceeds the reference slope. controller for compensation; and
a motor controller that executes an over-temperature protection logic for protecting the motor based on the compensation temperature value or controls an electric oil pump that pressurizes cooling oil to the motor with a specific RPM command signal;
Motor sensing temperature compensation system for an eco-friendly vehicle, characterized in that configured to include.
The method of claim 1,
The motor sensing temperature compensation controller:
a buffer memory to store the motor temperature value sensed by the temperature sensor;
a temperature gradient monitoring unit calculating a temperature gradient with respect to the motor temperature value stored in the buffer memory; and
a motor sensing temperature compensation determiner determining a compensation temperature value by adding a compensation value to the motor temperature value sensed by the temperature sensor when it is determined that the temperature slope exceeds a reference slope;
Motor sensing temperature compensation system of an eco-friendly vehicle, characterized in that consisting of.
The method of claim 2,
The motor sensing temperature compensation system of an eco-friendly vehicle, characterized in that the buffer memory is configured to store the motor temperature value sensed by the temperature sensor in a matrix form.
The method of claim 2,
The temperature gradient monitoring unit is configured to calculate the temperature gradient a by fitting the motor temperature value stored in the buffer memory in the form of a linear function of y = ax + b.
The method of claim 2,
The motor sensing temperature compensation determination unit is configured to determine the compensation temperature value from T _OUT = T _IN + F (a) = T _IN + (a × τ).
In the above equation, a is the temperature gradient, τ is the time constant value representing the responsiveness of the temperature sensor, T _IN is the motor temperature value sensed by the temperature sensor, F(a) is the compensation value obtained by multiplying the temperature gradient a and the time constant value τ, T _OUT is the compensated temperature value obtained by adding the compensated value F(a) to the motor temperature value T _IN .
The method of claim 5,
The motor sensing temperature compensation determination unit is configured to determine the compensation value F(a) as a value obtained by multiplying a value obtained by multiplying the temperature gradient a and the time constant value τ by an arbitrary safety factor.
Sensing the motor temperature with a temperature sensor;
storing the motor temperature value sensed by the temperature sensor in a buffer memory;
calculating a temperature gradient of a motor temperature value stored in the buffer memory; and
a motor sensing temperature compensation step of outputting a compensation temperature value obtained by adding a compensation value to the motor temperature value when the temperature slope exceeds a reference slope;
Motor sensing temperature compensation method of an eco-friendly vehicle comprising a.
The method of claim 7,
In the step of calculating the temperature gradient,
The motor temperature value stored in the buffer memory is fitted into a linear function form of y = ax + b, and the temperature gradient a is calculated from the fitted linear function form y = ax + b Motor of an eco-friendly vehicle, characterized in that Sensing temperature compensation method.
The method of claim 7,
The motor sensing temperature compensation step is:
determining a compensation value F(a) for the motor temperature sensed by the temperature sensor as a value obtained by multiplying the temperature slope a and the time constant value τ when the temperature slope exceeds the reference slope;
determining a compensation temperature value T _OUT obtained by adding a compensation value F(a) to the motor temperature value T _IN sensed by the temperature sensor;
Motor sensing temperature compensation method of an eco-friendly vehicle, characterized in that consisting of.
The method of claim 7,
Based on the compensation temperature value, the motor controller executes an overtemperature protection logic to protect the motor or controls an electric oil pump that pressurizes cooling oil to the motor with a specific RPM command signal. A method for compensating the motor sensed temperature of a vehicle.

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